Repair device for rimless eyeglasses.



G. A. HILBERT. REPAIR DEVICE FOR RIMLESS EYEGLASSES.

APPLICATION FILED APR.10,.1913.

' 1,087,657. Patented Feb. 17,1914.

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GEORGE ALBERT HILBERT, 0F BALTIMORE, MARYLAND.

REPAIR DEVICE FOR RIMLESS EYEGLASSES.

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To all whom it may concern Be it known that I, GEORGE ALBERT Hm BERT,citizen of the United States, residing at Baltimore, in the State ofMaryland, have invented certain new and useful Improvements in RepairDevices for Rimless Eveglasses, of which the following is aspecification.

This invention relates to a new and useful repair device for rimlesseyeglasses and spectacles.

To secure the style of optical lens termed rimless to a mounting-eithera nosepiece or templeit is usual to employ a forked post that straddlesthe edge of the glass lens, and fasten said forks to the lens by boringa hole in the lens and inserting a screw or rivet through the prongs andhole. This method of fastening the lens is desirable because neat andinexpensive, but it results in many of such lenses being broken at theplace where the screw-hole is. This kind of a fracture will frequentlyhave the shape indicated at, 7, in Fig. 2 of the drawing. It is verydesirable to be able to promptly repair a breakage of this kind withoutobtaining a new lens, which in many cases could be procured only from adistance.

The object of this invention, therefore, is to provide a ready-madedevice of metal over which an ordinary forked post may straddle, saiddevice having a screw-hole located to coincide with the position of thecorresponding screw-hole in the prongs of the post, and said deviceitself straddling the glass lens at the broken place and secured to thelens without the employment of additional screws or rivets.

The invention is disclosed in the drawing hereto attached in which,

Figure 1 is a view of a pair of eyeglasses of which one lens is mountedin the usual manner, not having been broken, and the other lens whichhas been broken, is mounted by the improved repair device. Fig. 2 showsan unmounted lens that has been broken. Fig. 3 is a fiat blank of twoS621 merit-shaped jaws. Fig. 4c is a section view, on a somewhat largerscale of a broken lens and the metal repair device attached thereto.Fig. 5 is also a section view showing the repair device and lens alsothe forked post secured in position and showing the repair completed.Fig. 6 shows a broken lens properly repalred.

Specification of Letters Patent.

Application filed April 10, 1913.

Patented Feb. 17,1214.

Serial No. 760,091.

This repair device may be used on rimless lenses whether they aremounted as eyeglasses or spectacles.

Referring to the drawing the rimless lens, that has been broken isdesignated, 8; the other lens, 9, is whole. It will be seen that withthe whole lens, 9, a post, 10, is employed that has two forks, 11; theseforks straddle the edge of the glass lens, and a screw, 12, passesthrough a hole in each fork and also through a hole, 1 1, in the lens.The most frequent form of break in these rimless lenses, is thatillustrated in Fig. 2, where a rounded broken-edge notch, 7, is shown,and portion of the screw-hole, 14, in the lens is also shown. The, smallindent, 15, seen in Figs. 2, at and 5, is only a slight depression inthe'surface of the lens, and is not a hole through the lens. An indentof this kind is on opposite sides of the glass lens.

The object of the present invention is a repair device to enable brokenlenses to be remounted and continued in use.

One form of my repair device has a metal clip comprising twosegment-shaped clampjaws, 16, the curved parts of the segments beingconnected by a ligament, 17 this is shown in its primary condition, inthe fiat state, in Fig. 3. In the finished condition of the device theligament, 17 at its joinder with each clamp-j aw has a right-angle bend,18, and the outline edges of the two jaws have parallel position. Thecurved part of the segment of each clamp-j aw has position thatcorresponds with the curved edge of the lens, 8, and therefrom each jawtapers V-shape to a tang-point, 19, where, on its inner surface, eachjaw has a small projecting spud, 20; the two small spuds, 20, as seen inFig. 4, point toward each other, and these two spuds fit into the smallindents, 15, on opposite sides of the glass lens. Each jaw has ascrew-hole, 21, whose position registers or coincides with thescrew-holes in the forks of the post.

When the device is in position the segment-shaped clamp jaws, 16, coverthe broken notch, 7 of the lens; then the forks, 11, of the post, 10,are slipped over the ligament, 17, and take position on the sides of thejaws, 16, and the screw, 12, is entered and extends through the hole ineach fork. through the hole, 21, in each clamp aw, and through thefractured place, 7, of the lens. When the screw has been tightened theeffect is to press the two spuds, 20, into the two indents, l5, andthereby the repair device and the forked post, 10, are firmly held totheir posit-ion on the glass lens, 8.

It is not practicable in so small a device to make drawings that willindicate the actual relative sizes of the several parts of the device,and in actual practice the parts of the two clamp jaws, 16, which extendover or cover the broken notch, 7, of the lens, will have such thicknessas will permit straddling by the same forked post that had been used onthe glass lens before it was broken.

Having thus described my invention what I claim and desire to secure byLetters Patent is 1. A repair device for rimless lenses for eye-glassesor spectacles, consisting of a metal clip having two se ment-shapedclamp-jaws the curved parts of the two segments being connected by aligament, and both jaws having a V-shape the point of which is providedon its inner surface with a spud adapted to fit into an indent formed onthe surface of a glass lens, and each jaw provided with a screw-hole,the two screwholes of the two jaws coinciding in position to permit thesame screw to enter both holes.

2. A repaired broken glass lens for eyeglasses or spectacles, comprisingthe broken lens having an indent on its two opposite surfaces; twosegment-shaped clamp-jaws connected by a ligament and both jaws having atang-point and each point provided on its inner surface with a spudwhich fits into the said indents on the glass lens; a forked poststraddling the said clamp-jaws; and a screw extending through the forksof the post and also through the clamp-jaws and compressing the saidspuds into the indents on the opposite side of the glass.

In testimony whereof I aflix my signature in presence of two witnesses.

GEORGE ALBERT HILBERT. Witnesses JOHN W. Howe, CHAS. B. MANN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, I). G.

